The Great Lakes: An AGW Showpiece

The Great Lakes: An AGW Showpiece

The Great Lakes have been used by AGW (Anthropogenic Global Warming) extremists to create fear … the fear of devastating consequences from global warming and climate change.

However, they have used the Great Lakes as Exhibit One for both extremes:

First, for when there was a drought, then for when there was flooding.

In other words, no matter what happens, it’s always due to CO2 induced global warming and climate change.

The Wall Street Journal recently ran a story about flooding in the Great Lakes and quoted a professor of climate science from the University of Michigan who said, “Climate change was likely driving the volatility.” 

But it was only a few years ago, in 2017, that the National Geographic magazine ran a spread on how climate change was affecting the world, including the Great Lakes, The National Geographic said:

“The Great Lakes hold a fifth of Earth’s surface fresh water, and they’ve shrunk dramatically. If it keeps up, shipping and fisheries could be left high and dry.”

From overflowing to shrinking lakes, climate change is the cause.

The Great Lakes is a treasure, not only as a natural resource, but also because there is a record of surface water levels going back to the 1800s.

NOAA’s website has an interactive display that goes back to 1917.

Screen Capture of hydrological chart from 1916 to present for lakes Superior, Michigan-Huron, Erie and Ontario. Source: NOAA historic record: 

It’s obvious from a cursory look at the screenshot that water levels have varied widely over the past century, and right up to today.

The fact is, climate is always changing and has very little to do with atmospheric levels of CO2.

Lowest water levels were:

  • Lake Superior, in 1926
  • Lakes Michigan-Huron, in 1964
  • Lake Erie, between 1934 and 1936
  • Lake Ontario, in 1965

Like so many claims by AGW proponents, the facts about water levels in the Great Lakes show that their claims of pending disaster are false.

The Great Lakes are a national treasure, not an AGW barometer.

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6 Replies to “The Great Lakes: An AGW Showpiece”

  1. Donn, You have a gift for concisely presenting relevant data. Another excellent post. I plan to post the link to your Blog on LinkedIn and Facebook on my Citizens for Common Sense page. The general public as well as many respected reporters as you mention (the wsj and National Geographic) among others have been drinking the Liberals Cool Aid. It is talented folks like you that can help educate the masses. Thank you.

    • Thanks for your comments and also for posting a link to my articles on Citizens for Common Sense.